Gas-radiator.



'M. J. PURC ELL.

GAS RADIATOR.

APPLICATION FILED MAR-27. I911.

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' Patented Aug. 7, 1917. F/5'. 2 F75 IQ r 2 rx IINI .a'r r rriicn.

GAS-RADIATOR.

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,Specification of Letters Patent.

. Patented Aug. 7,1917.

Application filed March 27, 1917. Serial lilo. 157,800.

To all whom it may concern.

Be it known that I; MI rIAEL 'J. PURCELL, a citizen of the United States, residing at San Francisco, in the county of San Francisco andState of California, have invented new and useful Improvements in Gas-Radiators, of which the following is a specification.

My invention relates to improvements in gas radiators, the object of my invention being to provide, in a gas radiator, a passage through which the products of combustion can freely and easily escape to the stack when the gas burner is first lighted and the radiator is cold, thereby preventing the escape of the products of combustion into the apartment in which the radiator is located, the radiator being so constructed that said products avoid said passage when the radiator is sufliciently heated.

In the accompanying drawing, Figure 1 is abroken front view of the radiator; Fig. 2 is an enlarged vertical section thereof on the line 22 of Fig. 1; Fig. 3 is a similar section on the line 3-3 of Fig. 1; Fig. 4 is a cross section on the line 44.- of Fig. 3; Fig. 5 is a cross section on the line 5-5 of Fig. 2.

Referring to the drawing, 1 indicates my improved radiator, which resembles in general appearance the ordinary hot water or steam radiator. It comprises a central radiating member 2, and side radiating members 3, connected together by rods 4 and connecting with each other at the top and bottom in the usual manner, as shown at 6, 7.

My invention is confined to the construc tion of the central member 2. This central member is, as shown in Fig. 1, of greater width than that of the side members. The lower part of the central member is divided by a partition 8 into two chambers, a burner chamber 9 and a draft chamber 11. In the burner chamber is a burner 12, having a central air passage, and supported at its front end by a gas pipe 13, screwed thereinto and extending through an air opening 14 in the lower end of the central chamber in front of said partition 8, said gas pipe being connected through a valve 16 with the source of supply of gas. At its rear end it is supported upon a boss or rib 17 in said partition, through which passes the lower rod 1. The side radiating members 3 communicate,

as shown at 7 with the rear or draft chamber 11, said chamber 11 being adapted to communicateiat the top, through an opening I 18 in the rear wall of the chamber, with a stack, not shown.

en the gas issuing from the burner is first ignited, the products of combustion flow upwardly between upwardly converging side guides or deflectors 21, and then flow to the top of the central member 2. If the radiator and stack were sufficiently heated, so that there was a column of heated, and therefore rarefied, gas or mixture of gases in the stack, then the products of combustion would flow outwardly through the opening 6 at the top on each side to the upper portions of the side members 3 of the radiator, then downwardly through said side members, and then inwardly through the lower openings 7 of the side members 3 of the radiator, into the draft chamber 11, then upwardly in said draft chamber, and then upwardly in the stack. But, upon first igniting the burner, the radiator and stack are cold, and there is a column of cold, and therefore heavy, air in the stack, and the heated products of com bustion, instead of moving through the openings 6 and circulating through the side radiating members 3, flow downward, along the side walls of the central member 2, and eventually choke or fill up said central member, so that combustion ceases. It is for this reason that I provide the converging side guides 21, and I also provide triangular escape openings 22 through the partition 8, between the side guides and the sides of the combustion chamber. The hot products of combustion then flow through said openings into the draft chamber 11 and then directly into the stack. As the stack and radiator becomes sufficiently heated, the products of combustion from the burner flow more rapidly than before, and also offer greater resistance to the downward flow of said products in the central chamber, and more and more of said products flow through the openings 6 into the side radiating men1 bers 3 and return by the openings 7 into the draft chamber 11, and then to the stack, until finally the whole of the products flow in that manner.

I claim 1. A gas radiator comprising members, one of which is provided with a partition forming, with walls of said member, burner and draft chambers, the other members of the radiator communicating at the top with the burner chamber and at the bottom with the draft chamber, a burner in said burner chamber, and a deflector in said burner chamber for deflecting downwardly flowing products of combustion therein, said partition having an opening, adjacent to said deflector, permitting said products to flow immediately from said burner chamber into the draft chamber.

2. A gas radiator comprising members, one of which is provided with a partition forming, With Walls of said member, burner and draft chambers, the other members of the radiator communicating at the top with the burner chamber and at the bottom with the draft chamber, a burner in said burner chamber, and upwardly converging deflectors in said burner chamber for deflecting downwardly flowing products of combustion therein, said partition having openings, between said deflectors and the side Walls of said member, permitting said products to flow immediately from said burner chamber into the draft chamber.

MICHAEL J. PURCELL.

Copies 01. this patent may be obtained for five cents each, by addressing the Gommissioner of Patents, Washington, D. G. 

